Cooling bed



A; NOELL 1,718,870 COOLING BED Q Fiied April is, 192's 2 Sheets-Sheet I Inventor June 25, 1929. A. NOELL 1.718.870

COOLING BED Filed 'April 15, 1926 2 Sheets-Sheet 2 Patented June- 25, 1929.

UNlTED STATE S p p 1,718,870 PATENT OFFICE. 1

I ALBERT NOELL, OI DUISBURG, enemy.

ooonnw mm,

Application filed April 15, 1826 Serial-Io. 102,258,:nd in Germany April 88, 1985.

Cooling beds are known in which the bars are arranged in groups after traversing the cooling area, but no cooling bed has been known up to the present in which the grouping of the bars is carried out automatically and immediatelyafter the receipt of the bars from the feeding channel in -a continuously operating mechanism.

- The specification of the United States Patent No. 1,082,387 describes a mechanism wherein the bars, which are moved over the cooling surface of the cooling bed on serrated transporting bars operated by eccentrics at comparatively great, but uniform distances apart, are collected in groups of bars by means ofendless chains by which they are also discharged on to the delivery track. The endless chains thus not only form the grouping elements but also serve to effect of the collected groups to the tage that a disturbance of the continual feed of the bars from the cooling bed requires to be interrupted in order to secure the grouping. Such an interruption is, however, inadmissible in a mechanismthat is adapted to operate continuously.

The present invention has for its object to provide a cooling bed in which the disadvantages of the known cooling beds are eliminated and which presents certain im-.

portant advantages; for example, the provision' of a feed channel'whi'ch, by means of a 7 device hereinafter described, is so adapted that the point of the bar about to be fed to the cooling bed cannot at any point or at any stage of its progress be obstructed, so

. that'inadvertant obstruction or interruption of the operation of the mechanism is avoided. *Again, it is possible for feed channels 'to be provided side by side in order that I bars of "the same length may be fed to the cooling bed without disturbing one another, each particular length of bar eing received intoits particular feed channel in the same manner as if it were being .fed to a cooling bed provided with a single feed channel.-

By this means the time which would be spent in separating the barsinto commercial lengths is reduced to a minimum, while the output possibilities of the mechanism and the rolling mill withwhich it is used are increased to a maximum. The provision of several feed channels is specially suitable for use in dealing with bars of from 5 to 10 millimeters diameter, for example. When deliver heavier sections are being rolled only the feed channel lying nearest to the cooling bed is brought into operation. i

A further advantage of the mechanism according to the invention consists in the fact that the operation of transferring the bars from the feed channel to the coolin bed is entirely distinct from the operation 0 eifecting the transverse movement of the latter. Again, the bars are arranged in groups immediately after they have been rethe groups of bars to the delivery track by means of the delivery carriages -or trucks hereinafter described. The delivery carriages or trucks are so designed that,-after a group of bars has been lifted from the cooling bed and the area it has occupied has thus been rendered free for the reception of the succeeding cup of bars, thedelivery of the group of are upon the delivery carriage or truck may be delayed until it is desirable to deposit the grou of bars upon the delivery roller track. e delivery carriage or truck may, however, be moved immediately to a osition above the delivery roller truck. Tli

either with a cooling bed comprising ele ments having a reciprocatory motion or cooling beds comprising endless chain elements.

The mechanism according to the invention,

.moreover, may be provided in such a way that all the movements of the several mechanisms involved, with the possible exception of the delivery of the grou s of bars to the roller track, may be matica y in the proper serl luence. The operation of the delivery mec anism is advantageous] eifected by push button control operate by the attendant in charge of the shears. The invention is illustrated diagrammatically, by way of example, in the accompanying drawings in whic Y e delivery mechanism according to the invention is applicable for use Figure 1 is a sectional elevation of an apparatus constructed according to the invention. 7

Figure 2 is a sectional elevation at right angles to Figure 1, through a part of the receiving track and transfer mechanism,

Figure 3 is a plan corresponding to Figure 2,

Figure 4 is a detail cross-sectional elevation through a receiving track having several channels.

Figure 5 is a detail cross-sectional elevation of the discharging mechanism with means for its operation.

Figure 6 is a cross-sectional elevation of a cooling bed provided with a controlling mechanism having a constant vertical stroke and adjustable horizontal stroke.

Figure 7 is a plan correspondin to Figure 6, and showing diagrammatica ly mechanism and the electrical connections for the automatic control of the whole apparatus.

Figure 8 is a detail cross-sectional elevation of a cooling bed having endless chains as the feeding and grouping elements with a horizontal stroke only.

Figure 9 is a plan corresponding to Figure 8 and showing automatic controlling mechanism for the movement of the feeding and grouping elements.

Inorder that the bars may be transferred the receiving track, provided with the feed rollers a to the cooling bed at the desired moment without any sort of disturbance whatever, pivoted flaps c, c (Fi ures 1, 2, 3, 4 and 6) are provided each of w ieh forms an inclined edge h when raised (as shown in dotted lines in Figures 1 and 2) so that the bars are able to roll on to the cooling bed without any part of the moving bars being able to strike against these transfer elements. This type of transfer apparatus avoids any interruption in the lateral guide wall of the receiving track, so that the ends of the bars cannot strike against the lateral walls of the channel. In the forward part of the receiving track directly behind the rollers, flaps 0 (Figures 2 and 3) are provided which are so constructed that in their raised position they deflect the bars to be transferred on the edge hi in the direction of the cooling bed but deflect the bars directly followlng to the side of the track further from the cooling bed b reason of their contour i and lnclmes or aces is. For this purpose the ascending channel Z (Figure 3) is extend laterally adjacent these flaps c in order that there may be room for the deflected bars in the channel. If several feed channels are used, as shown in Figure 4, it gives the advantage that all the bars can be cut into any predetermined lengths, by which the 'waste is considerably reduced, and the subsequent cutting of the bars into saleable lengths is avoided. The latter device is used where mainly small cross-sections are concerned which simultaneously leave the finishin mill in a number of continuous lengt s, as in wire tables.

If the bar 8 is to be raised from out of one of the channels illustrated in Figure 4, the

flaps c, c of these channels are raised b means of the rod 1/ (Figure 2) into the position indicated by dotted lines (Figure 4) restabove it in the adjacent pocket. The v flaps in the channel immediately adjacent the cooling bed pass on the bars directly to the transversely movable feed bars or grouping elements (l or 0, which place the bars in determined groups in the cooling bed (Figures 1, 4, 6 and 8). In Figures 1 and 6 the feed bars or formed by bars (I which are actuated, for example, byeccentrics, cams or the like to move normally in a predetermined manner (such as indicated by the curve 9 in Figure l) to receive the individual bars and so that the raised bars may be transported transversely the required distance. The spacing between the groups of bars is effected by causing a periodic movement in the horizontal direction greater than the normal move-' ment, the extent and timing of the said perlodic movement being predetermined.

rouping elements are i A particular form of construction is hereinafter described in connection with the automatic control. In the a paratus according to Figures 4 and 8 tie control 1s effected by the use of endless chains 0,

which make an adjustable transverse movement greater than the normal movement after the delivery of each bar or group of bars. The distance and timing of this transverse movement is prcvionsly. determined upon as desired, whereupon all the regulating movements proceed automatically, and are controlled either mechanically or electrically. The latter applies to the known control of the discharging flaps in such manner, that the end of the incoming bar actuates a switch arm whereby both .the movementfor cutting as also all the other movements are started. It will now be understood that, in order to secure the proper discharge of the bars at the end of the cooling table near the delivery roller train the bars are grouped immediately they have passed from the feed channel to the feed bars. In the construction illustrated in Figure 1, the bars are'received upon the feed bars (1 in groups t and they are therefore lifted, carried forward and deposited upon the stationary grid 0 in each cycle of movements of the feed bars (1, the groups of bars resting upon the grid e during the return or group both' cases effected after the emptying of idle movements of the feed bars (I. Alternativ'ely, in the place of the stationary grid e, there ma be provided a second series of fixed feed ars or 'of feed bars the movements of which are alternate to those of the .feed bars-d between which they are interspersed.- When the first group of bars comes to a position close up to the delivery track it is raised 'b the discharging carria or truck f, as illustrated in Figures-1 an 5, into the position f shown -in thedrawing in full lines. It will be understood that there may be a, number of the discharging carriages or trucks arranged along the length of the cooling bed.

. In the construction according to Figure 1 the first roup of bars upon the cooling bed is disc arged to make way for the next.

group, while in the construction according to Figure 5 the first group may be held over.

the delivery track in the position f" shown in Figures 1 and 5. The suspension of the movement of the discharge carriages or trucks may be effected either in the position f or the position f". The discharge of the of bars on to the delivery track is in delivery track.

The movements of the discharge carriages or trucks may be effected by any suitable means. Thus, as shown in Figure 5, the lifting movement may be effected by means of a motor 31 and driving gear 32 serving to raise or lower the platform through the arms or cranks 68 and 69, while the horizontal movement may be effected by a motor 35 and driving gear 36 serving to operate an arm or crank 66, connected by alink 67 to the discharge carriage or truck.

All these movements, with the exception of the discharge movement of the groups of bars on to the delivery track, are, as hereinbefore described, interdependent and are effected automatically at the desired time intervals. The discharge of a group on to the delivery track is effected by the operator of the shears when the shears are ready to.

effect the cutting. Cooling beds are already known upon which the bars can be after passing the cooling bed in groups but not one of them does the work automatically so that a considerable saving in labour is secured by the apparatus according to the invention. Furthermore, all the known conmplied sequence.

structions have the disadvantage that itis not possible to secure an actual uninter- Figures 6 and 7, c are. the discharge flaps, d the feed bars or'grou ing1 elements, I) the delivery track, all of w ich have already been mentioned with respect to Figure 1. 14 is a movable carryin frame for the feed bars, provided with re lers resting upon inclined tracks 15 whereby, owing to the weight of the feed bars and the frame,

the levers 8, 9 are pressed continuously in the direction of the respective cams. 13 are rods for connecting the supports with the controlling levers 12. 11 is the controlling shaft to which the lovers 12 are keyed. 9 is a lever for elfectin the control or feed stroke, keyed to, the s aft 11. .8 is a lever for effecting the spacing stroke and is rota-. tably mountedupon the shaft 11. 7 is a clutch for periodical coupling and uncoupling the lever 8 and the controlling shaft 11, the clutch being advantageously operated electro-magnetically. 10 are rocking levers for the purpose of lifting the feed bars andtheir frame in the vertical direction, which levers are rotatably mounted upon the shaft 11 and keyed on the shaft 11". 16 are connecting rods connecting to ether the levers 10 in pairs 'at their free en 5. 19 is a main drivingshaft. 18 is cam disc for movin the levers 10 about the shaft 11 or the shat 11 and producing the vertical reciprocation of the feed bars d. an is a conical eccentric drum for producing the controlling or feed stroke, which drum is axially movable upon a hollow shaft 1: rigidly connected to the shaft 19, for varying the length'of the controllin stroke through the lever 9. w is a cam 0 determined eccentricity for producing the spacin of bars after t e lever 8 has been con led to the shaft 11. 20 is a worm gear for riving the main driving shaft 19. 21' is the main driving motor. 22 is'a cam d'isc hav-' ing a contact 23 for actuating a cut out 24 when the contact passes afstationary brush or finger contact. The cut out 24 breaks the circuit of the motor 21 after it has rotated to an extent equal to one rotation of the stroke between the groups shaft- 19; a: and y are toothed -wheel 7 gears for driving a control shaft from the' main shaft 19. z is a chain wheel on the said control shaft. Z is an endless chain whose number of links is in a determined ratio with respect tothe number of bars in a group and which may be exchanged to vary the ratio. 2 is a switch operating finger which is fixed to the chain 1. 3 is a weight ed "for holding the chain 1 in tension. 4 is a lever for operating a switch 5. 6 is an electro-magnet for operating the clutch and is energized through the switch 5. It serves also toeffect the closure at 17 of a circuit by which the motor 31 for effecting the lift advantageous, however, that the mechanism for operating the discharge carriages or trucks should start the lifting movement only after the spacing movement has been completed. This can be effected by the use of a suitable cam in the mechanism. The electro-magnet 6 may be connected to. opcrate the clutch 7 in any suitable manner. It may, for example, form part of or be applied upon one element of the clutch. 25 is a motor and 26 a driving gear connected to the rod p for effecting the movement of the discharge flaps which lie adjacent the cooling bed. actuating the switch 28 at the proper time and which switches on the main driving motor 21 immediately the bar or bars to be discharged pass from the discharge flaps. 29 is a cam disc contact device for operating the cutout switch 30 which cuts out the motor 25 after the completion of the required movement of the discharge flaps. 31 and 32 are a motor and driving gear respectively for the lifting mechanism of the, dis charging carriages f, as hcreinbefore stated 33 is a cam disc contact device for operating a cut out 34 which cuts out the motor 31 at the required moment ti) stop the move:- ment of the discharge carriage or truck. 35 and 36 are a motor and driving gear respectively for moving the discharging carriages in the horizontal direction. 37' is a cam disc contact device which operates the switch 38 which starts the motor 31 to etiect the lowering movement of the discharge carriages after the transverse movement thereof has been completed. 39 is a cam disc contact device which operates the cut out 40 for cutting out the motor 35 and, if necessary, the motor 31 after the discharge trucks have been brought back to their in- :itial position.

41 is a switch which is operated by the shears operator for starting the delivery effected by the motor 35 and driving gear 36. It will be understood that the motors 31 and 35 are reversing. motors so that upon rotation in one direction they serve to effect the movement of the arms 68 and 66 respectively in one direction and on rotation in the reverse direction to move the arms 68 and 66 respectively in the opposite direction. Instead of the two motors 31 and 35, and their gears, a single motor and driving gear may be used in conjunction with double armed levers replacing the arms 66 and 68 (Figure 5) and 'actuatedby cam discs of suitable shape receiving the drive. The drum u may alternatively be provided to efl'ect the necessary movements, or equivalent mechanical elements may be employed for the purpose. 42 IS a switch 27 is a cam disc contact device for "which is fixed in an adjustable position in the feed channel so that it may be. operated by the end of the bar which is being transferred to the. cooling bed and start the cycle of the automatic mechanism by closing the. circuit of the motor 25 efiectmg the movement of the discharge flaps c.

The apparatus is operated as follows:

When a moving bar closes the switch 42 to effect thedischarging movement, the bar or bars in the receiving channel or channels -is or are discharged through the operation of the. discharging flaps by a motor 25 andgear 26. Through the movement of this gear the disc 27, which is adjustable is caused to switch on the. main driving motor 21 by closing the switch 28 immediately after the discharging movement has been completed but with a time lag such as to permit the feed. and grouping movements to follow in sequence the time lag being variable.

.As soon as the motor-21 has effected one rotation of the main driving shaft 1!), it is cutout by the switch or cut out mechanism 22, 23, 24. The rotation of the main driving shaft. 19 produces the upward movement of the. feed bars or grouping elements (I by means of the parts 18, 1t) and 16, and at the same. time produces the horizontal controlling movement or spacing movement, by means of the members u, 9, 12 or 13, and 1e 8., 1'2. and 1.3 respectively, after connection has been. made between the lever 8 and the shaft 11 by means of the clutch 7. The cooling bed begins'to function to arrange the bars in groups according to number-that is to say, when the mechanism st arts the clutch 7 is at first uncoupled, so that the. lever 9 may perform the feed movement. and after thexlesircd nmnber of bars to form a group has been received, the electromagnet 6, which connects the clutch 7 to the lever B and the shaft 11, is switched-in by means of the. switch mechanism :21, 1 z, 1, 2.

3. 4. 5. when the last movement of the fced bars is nearly completed. The spacing stroke of the feed bars is made during their next movement, the lever 9 being moved free from its cam. After this stroke has been inade the clectro-magnet is'cut out, for example, by the automatic opening of the switch 5, and the clutch 7 is automatically uncoupled by gravity or otherwise, whereupon 'the. collection of the next group of bars begins. Simultaneously the motor 31 of the discharging carriages f is started by the switch device 34 so that the group of bars which has reached a position above. the discharge carriages israised and thus space is left for the next group of bars to be fed forward without the raised group of bars necesmrily being deposited on to the delivery track. This is very important because a variable accumulation of bars between the coolingbed andthe cold shears chain 1 is exchanged for another whose number'of links corresponds or is in a definite ratio to the desired number of bars in a a group. At the same time the drum u may,

if necessary, be adjusted in position to give a feed corresponding to the width of the bars now to be handled. The relationship between the'number of bars and the number of links of the control chain is as follows:

The ratio between the number of teeth in the chain sprocket z and the number of links in the chain 1, multiplied by the ratio between the diameters of the wheels :1: and 3 gives a fraction the denominator of which is equal to the desired number of bars in a grou If, for example, the ratio between :0 an 3/ is 1 to 5, and the ratio between the number of teeth in the chain sprocket z and the number of links in the control chain is 1 to 2, the total ratio equals 1 to 5 times 1 to 2=1 to 10, that is to say after 10 controlling movements the spacing stroke .movement is started by the finger 2. Now if a control chain with a particular number of links to give a ratio of 1 to 2.2, is placed upon the chain sprocket z, the total ratio produced is 1 to 5 times l-to 2.2=1 to 11, so that in this case 11 bars are disposed in a single group. It'will thus be understood that a great improvement in this type of machine is secured, the improvement consisting in being able to arrange the bars automaticall and, substantially in accordance with t eir width, in groups of any desired number upon the cooling bed without the necessity for special manipulation on the art of workmen, at the same time dispensing wit workmen that have hitherto been necessary or this purpose.

The control of the spacing by means of the chains hereinbefore described represents, by way of example, one form of constructionbut it will be understood that a similar result consisting in the automatic arrangement of the number of bars in a group in a determined ratio with respect to the controlling. movements may 'be secured by any other suitable means, such as change I gearing or the like without departing from the scope of the invention, the feature of which lies in the fact that the number of bars pergroup is brought into a different ratio with respect to the control movements and that all the said movements are effected automatically. Y

According to a modified construction as illustrated in Figures 8 and 9, endless chains or 'the'like are employedastransverse feeding and grouping e ements.- Inthis case the driving shaft 44 of the chain sprockets 43 is driven by gearing 45 the transmission ratio of WhiOh'iS such that one rotation of the desired gear ratio, 47-48, 49-50, 5152 etc., in such manner that the switch mechanism 63, 64 cuts out the motor 46 at the determined time, thatisto say, after the motor has made the number of revolutions necessary to produce the desired control stroke. The length of travel of the feeding elements (the chains 0} and the number of bars in a group depen upon the ratio of the wheels 47 and 48 et seq. In a ratio of 1 to 1 the motor 46 is cut out after one revolution and in a ratio of 1 to 2 after two revolutions, and so on. The stroke of the chains 0 is pro ortional to the number of revolutions of t e motor 46. Of the gear wheels 48, 50, 52 etc. that wheel which corresponds to the desired travel of the chains 0 is connected to the switch shaft b means of a draw wedge clutch. The spacing travel and-also the operation of lifting the groups is started b a cam disc mounted upon the shaft 44, whic is so provided that the spacing and lifting thrusts I are produced after the width to be shown in Figure 6, the frame 14 and inclined tracks 15 may be replaced by a car ing frame directly mounted on vertical gui e members connected to the levers 10, the horizontal travel bein given by the connection of the links 13 tot e upper .ends of the guide members.

I'claim: 1. A coolin bed for rolled metal bars,

comprising e ements for supporting and transporting the .bars, a feed channel in 'advance' of the coolin bed, means ap lied to saidfeed channel %or delivering t 0 feed bars to the cooling bed, and means for giving to the elements of the cooling bed a variable travel and a periodic increase in travel for the transport of the bars sup-v ported thereon substantially as described.

2. A cooling bed for rolled metal bars, comprising elements for supporting and transporting the bars, means for moving the said elements'through a variable travel, and means for periodically giving to the said elements. an extended travel, substantially as described. I

3. A cooling bed for rolled metal bars, comprising elements for supporting and transporting the bars, means for giving to said elements a variable travel and a pcriodic increase of travel, a delivery roller track disposed adjacent the cooling bed, and discharging means for transferring the bars from the cooling bed to the said delivery roller track, substantially as described.

4. A cooling bed for rolled metal bars, comprising elements for supporting and transporting the said bars, means for giving to said elements a variable travel and a pcriodic increase of travel, a delivery roller track disposed adjacent the cooling bed, and discharging means for transferring the bars from the cooling bed to the said delivery roller track, the said discharging means cooperating with the elements of the cooling bed to raise a group of bars therefrom and to leave a vacant space upon the cooling bed adjacent the delivery roller track, substantially as described.

5. A cooling bed for rolled metal bars, comprising elements for supporting and transporting the said bars, the said elements having a variable travel and a periodically extended travel, a delivery roller track adjacent the said cooling bed, discharging trucks co-operating with the elements of the cooling bed to raise a group of bars above the surface of the bed, and means for elevating the discharging trucks and moving them over the dellvery roller track as distinct operations, substantially as described.

6. A cooling bed for rolled metal bars, comprising elements for supporting and transporting the said bars, the said elements having a variable travel and a periodically extended travel, a deliver roller track adjacent said cooling bed, co-o crating with the elements of the coolmg ed to raise a group of bars therefrom, means for elevating .the said discharging trucks, and means for moving and support- 1n the said discharging trucks over said de lvery bed 'prior to the discharge of the group of bars on to the delivery roller track, substantially as described.

7. Acooling bed for rolled metal bars, comprising elements for supporting and transporting the said bars, the said elements havlng a variable travel and a periodically extended travel, a feed channel disposed. ad-

jacent the said cooling bed, discharge elements in the said feed channel adapted when elevated to eject a bar from the feed channel to the cooling bed, and means for elevating the said discharging elements, substantially as described.

8. cooling bed for rolled metal bars, comprising elements for supporting and transporting the said bars, the said elements havlng a variable travel and a periodically extended travel, a feed channel adjacent the said cooling bed, discharging elements in the said feed channel adapted when elevated to eject a bar from the feed channel and to ischarging trucks comprising elements for .supporting and.

transporting the said bars, the said elements having a variable traveland a periodically extended travel, a plurality of feed channels adjacent the said cooling bed, discharging elements in the said feed channels adapted when elevated to eject a bar from the corresponding feed channel, and means for elevating the said discharging elements, substantially as described.

10. A cooling bed for rolled metal bars, comprising elements for supporting and transporting the said bars, said elements having a variable travel and a periodically extended travel, a plurality of feed channels disposed adjacent the said cooling bed, discharging elements in the said feed channels adapted when elevated to eject abar from the said feed channel, pockets disposed between each pair of feed channels for the reception of the bars ejected from the first of said feed channels, and means for elevating the said discharging elements, substan-. tially as described.

11. A cooling bed for rolled metal bars, comprising elements for supporting and transporting the said bars, the said elements having a variable travel and a periodically extended travel, a plurality of feed channels disposed adjacent the said cooling bed, discharging elements in the said feed channels adapted when elevated to eject a bar from the corresponding feed channel, pockets between each pair of feed channels for the reception of the bar ejected from the first of said feed channels, the said pockets extending within the range of the discharging element of the second of the pair of feed channels for the ejection of the bar contained therein, and means for elevating the said discharging elements, substantially as described.

12. A cooling bed for cooled metal bars, comprising elements for supporting and transporting the said bars, said elements having a variable travel and a periodically extended travel, a plurality of feed channels disposed parallel and lying adjacent said cooling bed, and means for transferring bars received in the respective feed channels successively through and from the said channels to the cooling bed, substantially as described.

13. A cooling bed for rolled metal bars, comprising elements for supporting and transporting the said bars, the said elements having a variable travel and a periodically extended travel, a plurality of feed channels disposed parallel and adjacent to the said cooling bed, discharging elements in the said feed channels adapted when elevated to eject the bars from the corresponding feed channels, driving gear for elevating the said dischargin elements and imparting movement to the e ements of the cooling bed, and ad justable switch' contacts disposed in said feed channels for actuation by bars moving in said feed channels and servingto set into operation the said driving means, substantially as described.

14. A cooling bed for rolled metal bars, comprising moving elements for supporting and transporting the said bars, meansfor giving to said moving elements a travel of variable extent, means for giving to' said moving elements periodically an extended travel, and automatic controlling and actuating mechanism for the said means, substantially as described.

15. A cooling bed for rolled metal bars,

comprising moving elements for supporting and transporting the said bars, means for giving to said moving elements a travel of variable extent and means for giving to said moving elements an extended travel, the latter means bein brought into operation automatically at t e moment when the extended travel is required, substantially as described.

16. A cooling bed for rolled metal bars,

- comprising moving elements for supporting and transporting the said bars, a driving lever connected to said moving elements for giving thereto an oscillatory movement, an adjustablecam device operating upon said lever to give to the said moving elements a variable degree of travel, and means for giving to the said elements a rising and falling movement, substantially as described.

. 17. A cooling bed for rolled metal bars, comprising moving elements for sup orting and transpdrting said bars, means or giving to the said elements a variable travel, means for ,givin to the said elements a pcriodically extemfed travel, and a controlling device for bringing intooperation themeans for giving the periodically 'extxandedtravel at predetermined intervals, substantially as described.

18. A cooling bed for rolled metal bars, comprising moving elements for suppoiting and transporting the said bars, a driving shaft, means operated from said driving shaft for giving to the moving elements-a variable degree of travel, means operated from the driving shaft for giving to the elements a periodic movement 'of' extended travel, a counter-shaft, gearing driving the said counter-shaft from the said driving shaft, a'sprocket wheel on the said countershaft, a chain engaging the said sprocket wheel, the said chain being interchangeable and having links in number corresponding to the number of movements of travel to be given to the said elements, a trip device upon tially as described.

the said chain anda trip lever operated by the said trip device for bringing into 0 'era-v 'tion the means for giving to the sai eledelivery roller track adjacent the said cooling bed, discharging trucks co-operating with the said coolin bed and with the said delivery roller .tra for the transfer of bars from the cooling bed to the delivery roller track, means for operating the said discharging trucks and a control mechanism for simultaneously setting into operation the means for giving to the elements a periodijcally extended travel and the means 'for 'o crating the dischargingtrucks', substantia y as described. Y

20. A coolingbed for rolled 'metal bars,

comprising elements for supporting and transporting said bars said elements havmg a variable degree 0' travel and a period- 7 ically extended travel, a delivery roller track adjacent the said cooling bed, discharging trucks having a rising movement with respect to the cooling bed, a lateral transfer movement and a falling movement with respect to the delivery roller track,

trucks and automatic controlling mechanism which arrests the movement of the discharging trucks in the raised position, substan- 21. A cooling bed for rolled metal bars, comprising elements for supporting and transporting the said bars, the said elements havin a variable degree of travel and a PGliOiCfilb extended travel, a deliver roller track adjacent the said cooling be discharging trucks having arising 'movement transversely of the elements of the cooling bed, a transfer movement to the delivery roller track and a falling movement to the saidjtrack, means for efiecting the movements of the discharging trucks and controllin mechanism arresting the movement oft e said trucks when m position above the delivery roller track, substantially as described. v

22. A cooling bed for rolled metalbars, comprising elements for supporting and transporting the said bars, the said elements havin a variable degree of travel and a perio ically extended travel feed channels and'a delivery roller track ad'acent the said ed and the delivery roller. track-for 13o -means for operating the said discharging cooling bed, means in the sai feed channels 1 7 ,for ejecting bars on to. the cooling bed, dis:

to the cooling bed, discharging trucks for transferring the bars from the cooling bed tothe delivery roller track, means for effecting the operation of the elements of the cooling bed, the discharging elements of the feed channel and the discharging trucks, mechanism controlling the operation of the said means, and switch contacts in the feed channels actuated by the bars passing through the said feed channels for setting into operation the said mechanism, substantially as described.

ALBERT NOELL. 

